C Program Sum of Squares Series

By | March 11, 2020

C Program Sum of Squares Series

  C program to calculate and print 
  sum of the series 1^2+2^2+3^2+...+n^2
  C program to print the sum of squares of 
  all natural numbers from 1 to n.
int main()
    int i,n,sum;
    printf("Enter the value of n: ");
    /* loop to calculate sum from 1 to n*/
        sum= sum+(i*i);
    /*display the sum on screen*/
    printf("The Sum of the series 1^2+2^2+3^2+...+%d^2 is: %d\n",n,sum);
    return 0;


Enter the value of n: 5
The Sum of the series 1^2+2^2+3^2+…+5^2 is: 55

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